1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fiasKO [112]
2 years ago
11

Some water released 7800 J of energy when cooled from 78°C to 33°C. What was the mass of the water?

Chemistry
1 answer:
Karo-lina-s [1.5K]2 years ago
4 0

Answer:

-41. 47

Explanation:

m = q / Cp x T

m = Mass

q = Energy (or joules)

Cp = Heat Capacity

T = Change in Temperature

Water's heat capacity is always 4.18.

This is the formula you'll need for change in temperature:

Final - Initial

So, 33 - 78 = -45

m = 7800 / 4.18 x -45

= -41.47

You might be interested in
When combined with alcohol some over the counter drugs can:
Marianna [84]

Can cause a chemacal reaction

can i have brainliest i need it

7 0
3 years ago
Read 2 more answers
Ta, Os, Th are from metal?
Alex787 [66]

Answer:

Tantalium is a Transition metal.

Osmium is a Transition metal.

Thorium is radioactive Metal.

6 0
3 years ago
20 Points! (2) Which of the following statements are true about a strong base and a weak base at a pH of 11?
marshall27 [118]
The answer to this question is that <span>the strong base will require less HCl to bring the pH to 7 than the weak base. The string base ionizes completely so the [OH-] will be neutralized faster. The weak base has an equilibrium that will constantly shift</span> to compensate for any [OH-] loss, meaning more HCl will be needed to titrate it to lower pH.
5 0
4 years ago
Oxygen gas is collected at a pressure of 123 kPa in a container which has a volume of 10.0L. What temperature must be maintained
Morgarella [4.7K]
Given:

P = 123 kPa
V = 10.0 L
n = 0.500 moles
T = ?

Assume that the gas ideally, thus, we can use the ideal gas equation:

PV = nRT

where R = 0.0821 L atm/mol K

123 kPa * 1 atm/101.325 kPa * 10.0 L = 0.500 moles * 0.0821 Latm/molK * T

solve for T 

T = 295.72 K<span />
5 0
4 years ago
Read 2 more answers
CH,(g) + 20,(g) - CO2(g) + 2H20() + S90.4 kJ<br> What is the type of reaction that is occurring?
7nadin3 [17]

Answer:

The type of reaction that is occuring is 164.8 kJ.

3 0
3 years ago
Other questions:
  • 30 cubic meters of argon gas are kept under constant pressure. the gas is heated from 10.0 degrees celsius to 293 degrees celsiu
    6·1 answer
  • I need help answering this Chemestry question!
    13·1 answer
  • What subatomic particle identifies any type of<br> atom?
    15·1 answer
  • What is the most important element in carbon dioxide?
    15·1 answer
  • Which of the following statements is true?
    7·1 answer
  • A 10.0 g sample of granite initially at 77.0 ∘C is immersed into 26.0 g of water initially at 22.0 ∘C. What is the final tempera
    15·1 answer
  • A 150 mL of oxygen gas is collected over water at 20 °C and 758 torr. What volume will the same sample of oxygen occupy at STP w
    8·1 answer
  • Please I need help with this. Whoever answers it correctly will get Brainly
    12·1 answer
  • hydrochloric acid reacts with calcium carbonate to produce calcium chloride carbon dioxide and water. Chaneg word equations into
    9·1 answer
  • What is the effect of this organism on the ecosystem's current food web?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!